If any of your internal network devices stop working, contact the manufacturer. They should be able to tell you specific ports to open and how to do that. If they tell you that you must have NAT-PMP or UPnP enabled, you’ll have to make a decision for yourself on whether to re-enable it or get rid of a device that makes your network less secure.
Oct 31, 2016 MiniUPnP Project HomePage May 26, 2017 How do I activate UPnP for my Fritz!Box? | Paessler
I'm trying to turn my UPnP on because my Xbox 360 says that the connection is moderate but whenever I enable it and test my connection again it doesnt work.I've tried resetting the 360 and the modem but it doesnt do anything.The model of the modem is a Westell 6100 (I think?).I'm pretty annoyed about how it wont work and so I'm looking for help.
Jan 04, 2009 Selective UPNP/NAT-PMP - ZyXEL | DSLReports Forums
I have had UPnP on with every firmware I have tested using the R7000 with 4 desktops, 2 laptops, 1 iphone, 1 android tablet, 1 ipad min, and 1 wireless printer that is hardwired into a switch (+1 other additional switch & an access point that is hard wired as a wireless range extender-all into the r7000) and have never had any issues with upnp.
pfSense Universal Plug and Play UPnP NAT-PMP Configuration UPnP & NAT-PMP Basic Configuration. Now we can configure basic UPnP & NAT-PMP by just ticking 3 boxes and selecting the interfaces. This results in a setup that allows any device on the specified internal interfaces to conduct UPnP operations. For many home setups this probably works OK, as mentioned previously you really don’t want to be Utorrent, port mapping, UPnP, NAT-PMP etc? | Yahoo Answers Mar 09, 2011